只需上传文件就需要使用PHP。

但是为了维护关于文件的信息，你需要MySQL。

例如，对于一个学生，学生ID 1和他或她上传ProjectFile.pdf

然后你需要上传一个文件在一个独特的位置（替代你可以重命名文件）与数据库中的以下信息

1.学生ID：1

2.文件路径：../Assets / Upload /&lt ;一些随机字符串> /ProjectFile.pdf

3.文件名：ProjectFile.pdf



现在从MySQL下载扫描文件标签les。

获取最终用户的文件路径和开始下载文件。



我希望我能够解析您的查询。

For uploading file only you need to use PHP.
But for maintaining information regarding file u need MySQL.
For example for one student the Student Id 1 and he or she uploading a ProjectFile.pdf
then you need to upload a file in a unique location (alternative you can rename file) with following information in database
1. StudentID : 1
2. FilePath : ../Assets/Upload/<Some Random String>/ProjectFile.pdf
3. FileName : ProjectFile.pdf

Now at the time of download scan file from MySQL Tables.
Get the File Path and Start Download file for End User.

I hope i am able to resolve your query.

在此处查看答案：文件上传和下载Php [ ^ ]

这里：使用PHP上传文件到MySQL数据库 - PHP [ ^ ]

See answer here: File upload and Download in Php[^]
And here: Uploading files into a MySQL database using PHP - PHP[^]